Receptacle and auxiliary contents holding device

ABSTRACT

A receptacle includes a receptacle body including a space in which first contents is held and a coupling portion having an inlet, a receptacle stopper coupled to the coupling portion of the receptacle body, and a second contents holding portion including a holding part having an open upper part and holding second contents, a support portion located to surround the holding part to support the holding part, and a mounting portion connected to the support portion and coupled to an upper end of the coupling portion. The receptacle stopper includes: a cap portion, a protrusion located on an inner side surface of the cap portion and including first and second protrusion parts located to be spaced apart from an upper end of the cap portion by different distances, and a sealing portion located between an inner upper surface of the cap portion and the protrusion and sealing the holding part.

CROSS-REFERENCE TO RELATED APPLICATIONS

A claim for priority under 35 U.S.C. § 119 is made to Korean Patent Application No. 10-2020-0116420 filed on Sep. 10, 2020 in the Korean Intellectual Property Office, the entire contents of which are hereby incorporated by reference.

TECHNICAL FIELD

The present disclosure relates to a receptacle and auxiliary contents holding device.

BACKGROUND

Receptacles such as bottles for accommodating various beverages or seasonings are very useful to modern people.

These receptacles are formed of glass or synthetic resin and are manufactured and sold in various shapes depending on the contents contained therein.

Here, a receptacle stopper is adhered to an inlet of the contents so that the contents contained in the receptacle do not leak out of the receptacle.

However, even if the receptacle stopper is mounted, a sealing force of the receptacle stopper may decrease and the contents may be leaked to the outside.

SUMMARY

An object of the present disclosure is to prevent leakage of contents by improving airtightness of a receptacle stopper.

In an aspect, a receptacle includes: a receptacle body including a space in which first contents is held and a coupling portion having an inlet; a receptacle stopper coupled to the coupling portion of the receptacle body; and a second contents holding portion including a holding part having an open upper part and holding second contents, a support portion located to surround the holding part to support the holding part, and a mounting portion connected to the support portion and coupled to an upper end of the coupling portion, wherein the receptacle stopper includes: a cap portion; a protrusion located on an inner side surface of the cap portion and including a first protrusion part and a second protrusion part located to be spaced apart from an upper end of the cap portion by different distances; and a sealing portion located between an inner upper surface of the cap portion and the protrusion and sealing the holding part.

The sealing portion may include a support layer located adjacent to the inner upper surface of the cap portion and an airtight sheet adhered to a lower surface of the support layer.

The airtight sheet may include a metal material.

The airtight sheet may be formed of a material having a melting point lower than a melting point of the support layer.

The airtight sheet may be directly adhered to an upper end of the holding part.

Adhesion between the support layer and the airtight sheet may be greater than adhesion between the airtight sheet and an upper end of the holding part.

The airtight sheet may be additionally directly adhered to an upper end of the mounting portion.

Adhesion between the support layer and the airtight sheet may be greater than adhesion between the airtight sheet and the upper end of the holding part and the adhesion between the airtight sheet and the upper end of the mounting portion.

The sealing portion may further include a blocking portion extending downward from a lower part of the support layer and disposed to be in contact with an inner side surface of the mounting portion.

The sealing portion may include a support layer located adjacent to the inner upper surface of the cap portion and having an empty space in a middle part; and an airtight sheet adhered to the support layer to cover the empty space of the support layer and adhered to an upper end of the holding part to cover the open upper part of the holding part.

The sealing portion may further include a blocking portion extending downward from a lower part of the support layer and disposed to be in contact with an inner side surface of the mounting portion.

The sealing portion may include a first part having a first thickness and adhered to an upper end of the holding part to cover an upper part of the holding part; and a second part having a second thickness greater than the first thickness, surrounding the first part, and having a lower surface in contact with an upper end of the mounting portion.

The first part and the second part may be formed of the same material.

The sealing portion may further include a blocking portion extending downward from a lower part of the support layer and disposed to be in contact with an inner side surface of the mounting portion.

In another aspect, an auxiliary contents holding device includes: an auxiliary contents holding portion including a holding part having an open upper part and holding auxiliary contents, a support portion located to surround the holding part to support the holding part, and a mounting portion connected to the support portion and coupled to an upper end of a receptacle; a support layer located above the mounting portion; and an airtight sheet adhered to a lower surface of the support layer and sealing an upper part of the holding part.

The airtight sheet may include a metal material.

The airtight sheet may be formed of a material having a melting point lower than a melting point of the support layer.

A diameter of the airtight sheet may be smaller than a diameter of the support layer, and the airtight sheet may be adhered to an upper end of the holding part.

The support layer may have a lower surface in contact with an upper end of the mounting portion and an empty space at a middle part, and the airtight sheet may cover the empty space of the support layer at the lower part of the support layer and may be adhered to an upper end of the holding part to cover the open upper part of the holding part.

The auxiliary contents holding device may further include a blocking portion extending downward from a lower part of the support layer and disposed to be in contact with an inner side surface of the mounting portion.

In another aspect, an auxiliary contents holding device includes: an auxiliary contents holding portion including a holding part having an open upper part and holding auxiliary contents, a support portion located to surround the holding part to support the holding part, and a mounting portion connected to the support portion and coupled to an upper end of a receptacle; and a sealing portion coupled to an upper part of the auxiliary contents holding portion, wherein the sealing portion may include a first part having a first thickness and adhered to an upper end of the holding part to cover an upper part of the holding part; and a second part having a second thickness greater than the first thickness, surrounding the first part, and having a lower surface in contact with an upper end of the mounting portion.

The auxiliary contents holding device may further include a blocking portion extending downward from a lower part of the support layer and disposed to be in contact with an inner side surface of the mounting portion.

According to the features, the sealing portion sealing the inlet of the receptacle body may be removed only by opening the receptacle stopper without a separate removal operation.

Thus, user convenience may be improved.

Further, airtightness to the receptacle body may be improved by the blocking portion located in the sealing portion, thereby preventing a possibility of outflow of the contents located in the receptacle body.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a partially cut-away perspective view of a receptacle stopper when a sealing portion is separated from a receptacle body in a receptacle stopper according to an embodiment of the present disclosure.

FIG. 2 is a cross-sectional view of the receptacle stopper of FIG. 1.

FIG. 3 is a cross-sectional view of a receptacle according to an embodiment of the present disclosure.

FIGS. 4A to 4D are diagrams illustrating a process of assembling a receptacle and decoupling of a cap portion according to an embodiment of the present disclosure.

FIG. 5 is a cross-sectional view of a receptacle according to another embodiment of the present disclosure.

FIGS. 6A and 6B are perspective views of an auxiliary contents holding portion of FIG. 5, in which FIG. 6A is a front perspective view and FIG. 6B is a bottom perspective view.

FIGS. 7A to 7D are diagrams illustrating a process of assembling a receptacle and decoupling of a cap according to another embodiment of the present disclosure.

FIGS. 8 to 12 are cross-sectional views of a receptacle according to another embodiment of the present disclosure, respectively.

DETAILED DESCRIPTION

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, if it is determined that a detailed description of known functions and components associated with the present invention unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. The terms used henceforth are used to appropriately express the embodiments of the present invention and may be altered according to a person of a related field or conventional practice. Therefore, the terms should be defined on the basis of the entire content of this specification.

Technical terms used in the present specification are used only in order to describe specific exemplary embodiments rather than limiting the present invention. The terms of a singular form may include plural forms unless referred to the contrary. It will be further understood that the terms “comprise” and/or “comprising,” when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, regions, integers, steps, operations, elements, components, and/or groups thereof.

In addition, hereinafter, when it is described that thicknesses, widths, or lengths of certain components are the same, it means that a thickness, width, or length of a first component is within an error range of 10%, compared to a thickness, width, or length of a second component in consideration of process errors.

Hereinafter, a receptacle and auxiliary contents holding device according to an embodiment of the present disclosure will be described with reference to the accompanying drawings.

First, a receptacle 1 according to an embodiment of the present disclosure will be described with reference to FIGS. 1 and 2.

The receptacle 1 of this embodiment may include a receptacle stopper 10, a coupling portion 23 with a screw thread 25 located on an outer side surface thereof, and a receptacle body 20 coupled to the receptacle stopper 10 through the coupling portion 23.

The receptacle stopper 10 may be coupled to the receptacle body 20 to prevent the contents held in the receptacle body 20 from leaking to the outside.

As shown in FIG. 1, the receptacle stopper 10 may include a cap portion 11 having an upper surface and a side surface, a screw thread 131 and a protrusion 132 located on an inner side surface of the cap portion 11, and a sealing portion 15 located in the cap portion 11 to directly or indirectly cover the coupling portion 23.

The cap portion 11 has a circular planar shape and, as described above, the cap portion 11 may have the upper surface and the side surface and a lower part thereof may be opened.

The cap portion 11 may be coupled to the coupling portion 23 of the receptacle body 20 using a screw thread 131 formed on an inner side surface.

Therefore, after the coupling portion 23 of the receptacle body 20 is inserted into a space S11 surrounded by the upper surface and the side surface through the open lower part of the cap portion 11, the cap portion 11 may be coupled to or decoupled from the coupling portion 23 of the receptacle body 20 according to rotation in a corresponding direction.

The screw thread 131 may be one screw thread connected seamlessly in a spiral shape along the inner side surface of the cap portion 11 from bottom to top on the inner side surface of the cap portion 11.

The screw thread 131 may be coupled with a screw groove 25 located on an outer side surface of the coupling portion 23 of the receptacle body 20 to control the coupling and decoupling operation of the cap portion 11.

Accordingly, a user may close or open the cap portion 11 with the coupling portion 23 of the receptacle body 20 by rotating the cap portion 11 in a counterclockwise direction and a clockwise direction, respectively.

The protrusion 132 located on the inner side surface of the cap portion 11, such as the screw thread 131, serves to support a position of the sealing portion 15.

The protrusion 132 may be located on the screw thread 131 and connected seamlessly in a spiral form along a corresponding portion of the inner side surface of the cap portion 11 together with the screw thread 131.

The protrusion 132 may be seamlessly connected to the screw thread 131 which is substantially coupled to the coupling of the coupling portion 23 and the cap portion 11. In this case, the protrusion 132 may be integrally formed with the screw thread 131 and may or may not be involved in the coupling operation of the coupling portion 23 and the cap portion 11.

In another example, the protrusion 132 may not be connected to the screw thread 131 and disconnected. In this case, the protrusion 132 is located on the inner side surface of the cap portion 11 in a spiral shape by a predetermined length, and the screw thread 131 may be located in a spiral shape with a predetermined length apart from the protrusion 132 therebelow.

In this embodiment, as an example, a case where the coupling portion 132 is seamlessly connected to the screw thread 131 is illustrated and described.

The sealing portion 15 is adjacently spaced apart from an inner upper surface of the cap portion 11 and closes an upper part of the coupling portion 25 of the receptacle body 20 to prevent the contents held in the receptacle body 20 from flowing to the outside regardless of user intention.

Accordingly, the sealing portion 15 may have a circular planar shape, and as shown in FIG. 1, the sealing portion 15 may include a support layer 151 having a circular planar shape and an airtight sheet 152 adhered to a lower part of the support layer 151 through an adhesive or heat and having a circular planar shape as well.

The support layer 151 serves to support the shape of the sealing portion 15, may be formed of a synthetic resin such as polypropylene (PP), and may have a circular thin plate shape.

The airtight sheet 152 may include a substrate formed of a material containing aluminum or a synthetic resin such as polyethylene (PE).

The airtight sheet 152 may be adhered or fused to a lower surface of the support layer 151 using the sheet-shaped substrate and an adhesive or heat applied to an upper surface of the substrate, so that the entire upper surface of the airtight sheet 152 may be safely adhered to the lower surface of the support layer 151.

In addition, at least a portion of a lower surface of the substrate may be adhered to an upper end of the coupling portion 23 of the receptacle body 20 corresponding thereto through an adhesive or a fusing operation.

In this case, the airtight sheet 152 may include a metal material having conductivity and may have a melting point lower than that of the support layer 151.

Accordingly, when the airtight sheet 152 and the upper end of the coupling portion 23 are fused using an electromagnetic induction heating method, heat may be generated from the airtight sheet 152 due to the metal material contained in the airtight sheet 152, so that the airtight sheet 152 may be fused with the upper end of the coupling portion 23.

Here, since the melting point of the airtight sheet 152 is lower than that of the support layer 151, even when heat is applied to or generated in the airtight sheet 152, the airtight sheet 152 and the coupling portion 23 may be stably fused before the support layer 151 and the cap portion 110 in contact with each other are fused.

In this embodiment, the airtight sheet 152 may be located on the entire lower surface of the support layer 151 and exposed to the outside, and a diameter of the airtight sheet 152 may be equal to a diameter of the support layer 151.

As shown in FIG. 3, the support layer 151, specifically, the sealing portion 15, coupled to the upper end of the coupling portion 23 may be located between portions of the protrusion 132 most adjacent to an inner side (hereinafter, the inner side of the upper surface is referred to as “inner upper surface”) of the upper surface of the cap portion 11.

Since the protrusion 132 is located along the inner side surface of the cap portion 11 in a spiral shape seamlessly as described above, the protrusion 132 protrudes inward from the inner side surface of the cap portion 11 by a predetermined distance.

Due to the shape of the protrusion 132, the protrusion 132 may be located on the inner side surface of the cap portion 11 and include two protruding portions, e.g., a first protruding portion T131 and a second protruding portion T132, spaced apart from each other by different distances from the upper end of the cap portion 11.

Accordingly, as shown in FIGS. 2 and 3, in the protrusion 132, a height of the protrusion portion (e.g., the first protrusion part) T131 most adjacent to a first end P151 of the sealing portion 15 or the support layer 151 and a height of the protruding portion (e.g., the second protruding portion) T132 most adjacent to a second end P152 of the sealing portion or the support layer 151 located on the opposite side of the first end 151 and facing the first end P151 may be different from each other.

In this embodiment, the height of the first protrusion part T131 may be higher than the height of the second protrusion part T132. Here, the first protrusion part T131 and the second protrusion part T132 face each other from opposite sides.

Accordingly, the height of the first protrusion part (e.g., T131) of the protrusion 132 overlapping the first end P151 of the sealing portion 15 or the support layer 151 may be higher than the height of the second protrusion part (e.g., T132) overlapping the second end P152.

Here, as described above, the sealing portion 15 is positioned on the nearest protrusion portion and may overlap the corresponding protrusion portion by a predetermined length, so that the first end P151 and the second end P152 may overlap the first protrusion part T131 and the second protrusion part T132 on the corresponding protrusion portions T131 and 132, respectively.

A maximum diameter of the sealing portion 15 or the support layer 151 may be equal to a diameter of the inner upper surface of the cap portion 11, and a minimum diameter of the sealing portion 15 or the support layer 151 may be larger than a diagonal distance R1 between the innermost side end of the first protrusion part T131 and the innermost side end of the second protrusion part T132.

Therefore, when the cap portion 11 moves upward, while rotating along the outer side surface of the coupling portion 23 according to the operation of the screw thread 131 and the screw groove 25, the ends P151 and P152 of the sealing portion 15 may be caught by the adjacent protrusion portions T131 and T132 and move upward together, thus releasing a sealed state.

In this way, the protrusion portions T131 and T132 located on the inner side surface of the cap portion 11 and located at the top adjacent to the inner upper surface may serve to release the coupled state of the sealing portion 15 or the support layer 151.

This sealing portion 15 is not adhered anywhere inside the cap portion 11.

Therefore, as shown in FIG. 2, when the sealing portion 15 is separated from the coupling portion 23 of the receptacle body 20 and positioned in the space S11 of the cap portion 11 due to the opening operation of the cap portion 11, the sealing portion 15 may be inclined toward the ground, i.e., downward, in the cap portion 11 due to the influence of gravity, and in this case, the first and second protrusion parts T131 and T132 located at different heights may serve as engaging projections of the sealing portion 15.

That is, as shown in FIG. 2, the first end P151 of the sealing portion 15 or the support layer 151 may be caught by the first protruding portion T131 so as to be limited in a range of descending downward, and the second end P152 of the sealing portion 15 or the support layer 151 may be caught by the second protrusion part T132 so as to be limited in a range of descending downward.

As shown in FIG. 3, since the airtight sheet 152 of the sealing portion 15 is directly adhered to the upper end of the coupling portion 23 to completely seal the open coupling portion 23, the airtight sheet 152 may perform an airtight function of the contents stored in the receptacle body 20.

In this case, adhesion between the support layer 151 and the airtight sheet 152 may be greater than adhesion between the airtight sheet 152 and the upper end of the coupling portion 23, so that when the cap portion 11 is opened, the airtight sheet 152 may be stably separated from the upper end of the coupling portion 23 together with the support layer 151.

The receptacle body 20, as described above, may accommodate the contents and is coupled with the cap portion 11 to protect the contents held therein.

This receptacle body 20 may include a body 21 having a space S21 to hold the contents therein and an open upper part, the coupling portion 23 located at an upper portion of the body 21 and having an inlet H23 provided in the middle thereof and communicating with the space S21 of the body 21, and the screw groove 25 coupled to the screw thread 131 located on the outer side surface of the coupling portion to control an opening and closing operation of the cap portion 11.

Since the screw groove 25 is coupled with the screw thread 131 located on the inner side surface of the cap portion 11, the screw groove 25 may also have a spiral form from the bottom to the top on the outer side surface of the coupling portion 23 to correspond to the screw thread 131.

Next, an operation in which the receptacle stopper 10 having such a structure is coupled to the receptacle body 20 to assemble the receptacle 1 that holds the contents and the receptacle stopper 10, that is, the cap portion 11, is opened will be described.

First, an assembler may perform an operation of sealing the inlet H23 of the receptacle body 20 holding the contents using the inlet H23 of the coupling portion 23 by the sealing portion 15.

To this end, the assembler may apply an adhesive to the upper end of the coupling portion 23, position the airtight sheet 152, which is adhered to the support layer 15 and has an adhesive applied to a lower surface thereof, at the upper end of the coupling portion 23, and then apply pressure to completely close the inlet H23.

In an alternative example, the assembler may apply an adhesive to the upper end of the coupling portion 23, position the sealing portion 15 to be in contact with the coupling portion 23 thereon, or apply pressure, or the assembler may position the sealing portion 15 to be in contact with the coupling portion 23 on the coupling portion and irradiate heat or ultrasonic waves to a desired part to completely seal the inlet H23 with the sealing portion 15 through heat sealing or ultrasonic welding. In this case, it may not be necessary to apply an adhesive to a lower surface of the airtight sheet 152, that is, a lower surface of the substrate.

Through this operation, the inlet H23 of the receptacle body 20 holding the contents may be sealed by the sealing portion 15.

Thereafter, the assembler may couple the cap portion 11 with the coupling portion 23 of the receptacle body 20 to couple the cap portion 11 to the receptacle body 20 as shown in FIG. 4B. Accordingly, the receptacle stopper 10 may be coupled to the receptacle body 20.

In this way, airtightness of the contents held in the receptacle body 20 may be maintained by the attaching operation of the airtight sheet 152 and the upper end of the coupling portion 23 of the receptacle body 20, thus eliminating a possibility of outflow of contents while the receptacle 1 holding the contents is moved.

In this state, in order to open the cap portion 11 which closes the receptacle body 20 to drink the contents of the receptacle body 20, a user may rotate the cap portion 11 in a direction (e.g., counterclockwise direction) opposite to a direction in which the cap portion 11 is coupled to the receptacle body 20, to decouple the cap portion 11 and the receptacle body 20 [FIG. 4C].

As the decoupling of the cap portion 11 is performed, the cap portion 11 moves upward, while rotating along the screw groove 25 of the coupling portion 23 of the receptacle body 20.

The first protrusion part T131 located at the uppermost end of the protrusion 132 located on the inner side surface of the cap portion 11 moves, while pushing up a part (e.g., a first end P151) of the adjacent sealing portion 15.

Due to the lifting operation of the cap portion 11, adhesion of a part of the sealing portion 15 is weakened and separated from the upper end of the coupling portion 23 and moved upward together with the cap portion 11, and due to the decoupling operation of the cap portion 11 and the sealing portion 15, the entire part of the sealing portion 15 coupled to the upper end of the coupling portion 23 is resultantly decoupled and located inside the cap portion 11 [FIGS. 4C and 4D].

Here, the sealing portion 15 is not entirely separated from the coupling portion 23 at once but separated, starting from a part thereof, from the coupling portion 23, and as a result, the sealing portion 15 may be separated from the coupling portion 23 with less force.

In this way, the sealing portion 15 adhered to the upper end of the coupling portion 23 may be removed from the coupling portion 23 of the receptacle body 20 only by the decoupling operation of the cap portion 11, so that the user may take or drink the contents of the receptacle body 20 simply and conveniently without performing a separate operation of removing the sealing portion 15.

Next, a receptacle 1 a according to another example of the present disclosure will be described with reference to FIGS. 5 to 7D.

In the following embodiments, compared to the receptacle 1 shown in FIG. 1, components having the same structure as the receptacle 1 are denoted by the same reference numerals and detailed descriptions thereof will be omitted.

As shown in FIGS. 5 to 6B, the receptacle 1 a of the present embodiment may also include the receptacle stopper 10 and the receptacle body 20 to which the receptacle stopper 10 is coupled.

The receptacle stopper 10 has the same structure as the receptacle stopper 10 described above with reference to FIGS. 1 to 3, and thus, the receptacle stopper 10 may include the cap portion 11, the screw thread 131 and the protrusion 132 located in a spiral shape on the inner side surface of the cap portion 11, and the sealing portion 15 freely located in the internal space of the cap portion 11.

The sealing portion 15 may include the support layer 151 and the airtight sheet 152 adhered to the support layer 151 as described above.

As shown in FIG. 5, the airtight sheet 152 may be located at an upper part of the coupling portion 23 to seal the inlet H23. Also, in this case, the diameter of the support layer 151 and the diameter of the airtight sheet 152 may be equal.

The receptacle body 20 may also include the body 21 having the space S21 to hold the contents therein and the open upper part, the coupling portion 23 located at an upper portion of the body 21 and having the inlet H23 communicating with the space S21 of the body 21, and the screw groove 25 located on the outer side surface of the coupling portion.

However, the receptacle 1 a of this embodiment may further include an auxiliary content holding portion (e.g., a second content holding portion) 30 located at the upper end of the coupling portion 23 and partially embedded in the inlet H23.

The auxiliary contents holding portion 30 has an upper part covered with the sealing portion 15 and is coupled with the sealing portion 15 and keeps auxiliary contents (e.g., second contents) 40 different from main contents (e.g., first contents) held in the internal space S21 of the receptacle body 20.

In the present disclosure, the auxiliary contents holding portion 30 and the sealing portion 15 coupled to the upper part of the auxiliary contents holding portion 30 may be collectively referred to as an “auxiliary contents holding device”.

Accordingly, for a storage period of the stored auxiliary contents 40 and prevention of mixing with the main contents, the upper part of the open auxiliary contents holding portion 30 may be covered with the sealing portion 15 so as to be sealed.

As shown in FIGS. 5 to 6B, the auxiliary contents holding portion 30 may include a holding part 31 with an open upper part, a support portion 33 surrounding the holding part 31 to support the holding part 31, and a mounting portion 35 connected to the support portion 33 and coupled to an upper end of the coupling portion 23.

The holding part 31 may have an open upper part and hold the auxiliary contents (e.g., the second contents) 40 through the open upper part so as to be kept in storage.

The holding part 31 has a shape recessed on a lower side, i.e., a bottom surface, of the receptacle body 20 and may hold the auxiliary contents 40 therein.

In addition, since side and lower surfaces of the holding part 31 are completely blocked, the main contents and the auxiliary contents 40 held in the receptacle body 20 are not mixed with each other until before the user drinks the main contents and the auxiliary contents 40 together by opening the receptacle stopper 10.

In this case, a possibility of deterioration of the main contents and the auxiliary contents 40 is significantly reduced compared to a case where the main contents and the auxiliary contents 40 kept in the receptacle body 20 are mixed and preserved, and thus, a preservation period of the main contents and the auxiliary contents 40 is significantly increased, so that a distribution period of a corresponding product may be extended.

The support portion 33 may include a plurality of grates 33 located in a height direction of the receptacle 1 a on a side surface of the holding part 31 and spaced apart from each other.

Accordingly, an empty space exists between two adjacent gratings 331, and the main contents held in the receptacle body 20 may flow out through the inlet H23 through this space.

Accordingly, the user may easily take the main contents without removing the auxiliary contents holding portion 30 separately.

The mounting portion 35 may include a mounting portion body 351 connected to the plurality of gratings 331 of the support portion 33 and surrounding a portion (e.g., upper portion) of the holding part 31 and a engaging projection 352 having a shape bent in a hook shape from an end of the mounting portion body 351.

Accordingly, the auxiliary contents holding portion 30 may be positioned on the upper end of the coupling portion 23 of the receptacle body 20 through the engaging projection 352.

Therefore, the auxiliary contents holding portion 30 may be stably located in the inlet H23 of the coupling portion 23 by virtue of the mounting portion 35.

In this embodiment, a plurality of gratings 331 are radially positioned between the holding part 31 and the mounting portion 35 that is positioned spaced apart from the holding part 31 and the mounting portion 35 spaced apart from the holding part 31 and fully surrounding an upper portion of the holding part 31, so that the holding part 31 and the mounting portion 35 may be physically connected to each other by the gratings 331.

In this embodiment, a height of an upper end of the mounting portion 35, that is, a height of an upper end of the engaging projection 352, and a height of the upper end of the holding part 31 of the auxiliary contents holding portion 30 may be equal, or alternatively, the height of the upper end of the holding part 31 may be higher than the height of the upper end of the engaging projection 352. In this case, the upper end of the engaging projection 352 and the upper end of the holding part 31 are higher than the upper end of the coupling portion 23.

Accordingly, the airtight sheet 152 of the sealing portion 15 may be directly adhered or fused to the upper end of the engaging projection 352 and the upper end of the holding part 31, and thus, the open upper portion of the auxiliary contents holding portion 30, as well as the open inlet H23 of the receptacle body 20, may be stopped.

In this embodiment, adhesion between the support layer 151 and the airtight sheet 152 may be greater than adhesion between the airtight sheet 152 and the upper end of the holding part 31 and adhesion between the airtight sheet 152 and the upper end of the engaging projection 352.

Therefore, when the cap portion 11 is opened, the airtight sheet 152 may be separated together with the support layer 151 from the upper end of the holding part 31 and the upper end of the engaging projection 352 stably by the protrusion 132 of the cap portion 11.

In this way, an example of an assembly process of the receptacle 1 a additionally including the auxiliary contents holding portion 30 that holds the auxiliary contents 40 may be as follows.

First, the assembler positions the auxiliary contents 30 in the holding part 31 of the auxiliary contents holding portion 30 through the open upper portion of the auxiliary contents holding portion 30.

Thereafter, the assembler may attach the sealing portion 15 to an upper part of the auxiliary contents holding portion 30 through a bonding operation or a fusing operation to completely cover the portion of the open holding part 31 and the portion of the open coupling portion 23 with the sealing portion 15 to assemble the auxiliary contents holding device [FIG. 7A].

Accordingly, the lower surface of the airtight sheet 152 of the sealing portion 15 may be adhered or fused to the upper end of the holding part 31 and the upper end of the engaging projection 352 in contact therewith.

Next, the assembler inserts and positions the engaging projection 365 of the auxiliary contents holding portion 30 with the sealing portion 15 mounted thereon in the coupling portion 23 of the receptacle body 20 holding the main contents to couple the auxiliary contents holding portion 30 to the receptacle body 20.

Finally, the assembler may couple the cap portion 11 to the coupling portion 23 of the receptacle body 20, thereby completing the receptacle 1 a in which the main contents and the auxiliary contents 40 are separated from each other (See FIG. 7B].

In this state, in order for the user to take the main contents and the auxiliary contents 40 held in the receptacle 1 a, the user may rotate the cap portion 11 in a corresponding direction to separate the cap portion 11 from the coupling portion 23.

As described above, due to the rotational operation of the cap portion 11, the decoupling operation is performed in turn, starting from the portion of the sealing portion 15 located most adjacent to the protrusion 132 according to a lifting phenomenon based on the protrusion 132 located on the inner side surface of the cap portion 11, so that the sealing portion 15 may be completely removed from the coupling portion 23 [FIGS. 7C and 7D].

Accordingly, the cap portion 11 and the sealing portion 15 may be completely separated from the receptacle body 20, thus completing the decoupling operation of the receptacle stopper 10.

Therefore, the user may take the main contents of the receptacle body 20 discharged between the gratings 331 of the support portion 33 together with the auxiliary contents 40 exposed to the outside by the opening of the cap portion 11.

Next, another example of the receptacle will be described with reference to FIG. 8.

In the following embodiments, components having the same structure as the receptacle shown in FIGS. 1 to 7D and performing the same function are denoted by the same reference numerals as those of FIGS. 1 to 7D and a description thereof will be omitted.

A receptacle 1 b of FIG. 8 may include the auxiliary contents holding portion 30, and a structure of the other receptacle 1 b is the same as that of the receptacle 1 a shown in FIG. 5, except for a receptacle stopper 10 a.

In the receptacle stopper 10 a of this embodiment, as shown in FIG. 8, components of the receptacle stopper 10 a other than a sealing portion 15 a may have the same structure as the receptacle stopper 10 shown in FIGS. 1 to 3.

Accordingly, the sealing portion 15 a of the receptacle stopper 10 a of the present embodiment may include the support layer 151 and an airtight sheet 152 a having an upper surface entirely adhered to a lower surface of the support layer 151.

Here, the airtight sheet 152 a of this embodiment having a circular planar shape may be positioned only in part, such as the middle part of the support layer 151, instead of being in contact with the entire lower surface of the support layer 151 having a circular planar shape.

Due to this, a diameter of the airtight sheet 152 a of this embodiment may be smaller than a diameter of the support layer 151.

Here, the airtight sheet 152 a may be positioned to correspond to the open upper portion of the holding part 31 of the auxiliary content holding portion 30 located on the lower side, so that the airtight sheet 152 a may be directly adhered or fused to only the upper end of the holding part 31, among the upper end of the holding part 31 and the upper end of the engaging projection 352.

Therefore, a diameter of the airtight sheet 152 a may be smaller than a diameter of the support layer 151 but may be larger than a maximum diameter of the holding part 31.

In addition, a part (e.g., edges) of the sealing portion 15 a may have only the support layer 151.

Due to this, a thickness of the sealing portion 15 a is different from the sealing portion 15 according to positions. That is, the part of the sealing portion 15 a in which the airtight sheet 152 a is located therebelow may have a thickness greater than the part of the sealing portion 15 a in which only the support layer 15 exists. As described above, the sealing portion 15 may have the same thickness regardless of position.

Therefore, a height of the upper end of the upper end of the holding part 31 of the auxiliary contents holding portion 30 may be lower than a height of the upper end of the engaging projection 352, and here, a height difference between the two upper ends may be determined depending on the thickness of the airtight sheet 152 a.

In this case, as shown in FIG. 8, the airtight sheet 152 a may be stably adhered to the upper end of the holding portion 30 and the lower surface of the support layer 151 may be stably in contact with or adhered to the upper end of the facing engaging projection 352.

An assembly sequence of the receptacle 1 b having the receptacle stopper 10 a of this structure may be the same as the assembly sequence of the receptacle 1 a.

Therefore, the operator may put the auxiliary contents in the auxiliary contents holding portion 30, position the sealing portion 15 a above the auxiliary contents holding portion 30, and subsequently attach or fuse only the upper end of the holding part 31 of the auxiliary contents holding portion 30 to the support layer 151 to seal the auxiliary contents holding portion 30. Accordingly, the assembly of the auxiliary contents holding device in which the sealing portion 15 a is mounted on the upper end of the auxiliary contents holding portion 30 may be completed.

Thereafter, the operator may couple the auxiliary content holding portion 30 sealed with the sealing portion 15 to the coupling portion 23 of the receptacle body 20 holding the main contents using the engaging projection 352 of the mounting portion 35 of the auxiliary contents holding portion 30 sealed with the sealing portion 15 a to position the auxiliary contents holding portion 30 in the internal space S21 of the receptacle body 20.

Finally, the operator may complete the assembly of the receptacle 1 a by coupling the cap portion 11 to the coupling portion 23 of the receptacle body 20.

In this way, when the receptacle 1 b is completed by coupling the receptacle stopper 10 a to the receptacle body 20, the airtight sheet 152 a is adhered to and located only at the upper end of the holding part 31, and thus, the airtight sheet 152 a may serve as a cover closing the open holding part 31.

Accordingly, the holding part 31 is kept completely sealed by the airtight sheet 152 b, so that a storage state of the auxiliary contents 30 located therein is well maintained and a possibility in which the main contents and the auxiliary contents 30 held in the body 21 of the receptacle body 20 may be completely prevented.

In addition, consumption of the airtight sheet 152 b may be reduced to reduce manufacturing cost of the receptacle.

Next, another example of a receptacle stopper 10 b coupled with the auxiliary contents holding portion 30 will be described with reference to FIG. 9.

As compared with FIG. 8, other components of the receptacle stopper 10 b excluding a sealing portion 15 b may have the same structure as that of the receptacle stopper 10 a and the receptacle body 20 may also be the same as that of FIG. 8.

Accordingly, the receptacle stopper 10 b may include the cap portion 11, the screw thread 131 and the protrusion 132 located on the inner side surface of the cap portion 11, and the sealing portion 15 b adhered to the inner upper surface of the cap portion 11.

The sealing portion 15 b of the present embodiment may include a support layer 151 whose descending position is limited by the protrusion 132 of the cap portion 11 and an airtight sheet 152 a adhered to a lower part of the support layer 151.

In this embodiment, the sealing portion 15 b may further include a blocking portion 153 extending from the lower part of the support layer 151 toward the ground, that is, toward the auxiliary content holding portion 30. In this case, the blocking portion 153 may be manufactured integrally with the support layer 151, and in this case, the blocking portion 153 may be formed of the same material as that of the support layer 151.

The blocking portion 153 extends from the lower part of the support layer 151 by a predetermined length downward and is seamlessly connected and surrounded in a skirt shape along the circumference of the circular support layer 151. Accordingly, the blocking portion 153 is a plate having a vertical length and a circular planar shape with an empty middle part.

As shown in FIG. 9, the blocking portion 153 may be positioned such that an outer side surface is in contact with an inner side surface of the engaging projection 352.

A maximum diameter, that is, an outer diameter, of the blocking portion 153 may be larger than a minimum diameter, that is, an inner diameter of the mounting portion 35. Accordingly, the blocking portion 153 may be inserted into the internal space of the mounting portion 35 by a force fitting operation and airtightness between the blocking portion 153 and the mounting portion 35 may be increased by the force fitting operation.

The blocking portion 153 may be released when the sealing portion 15 b is decoupled by an opening operation of the cap portion 11.

As shown in FIG. 9, a downward extending length of the blocking portion 153 may be a length in contact with an upper end of the grating 33 located therebelow.

Due to the presence of the blocking portion 153, the inner side of the mounting portion 35 of the sealing portion 15 b is blocked by the blocking portion 153, so that space between the holding part 31 and the mounting portion 35, as well as an upper part of the holding part 31, may be sealed.

Therefore, even if the airtight sheet 152 a is not directly in close contact with the upper end of the mounting portion 35, leakage of the main contents between the mounting portion 35 and the support layer 151 may be prevented.

Therefore, in the receptacle 1 c of the present embodiment to which the receptacle stopper 10 b is coupled, the main contents held in the receptacle body 20 does not flow out even while on the move, thereby achieving movement convenience and enhancing user convenience.

Next, another embodiment of a receptacle stopper 10 c coupled with the auxiliary content holding part 30 will be described with reference to FIG. 10.

Also, in this embodiment, other components of the receptacle stopper 10 c except for a sealing portion 15 c may have the same structure as that of the receptacle stopper 10 shown in FIGS. 1 to 3.

Accordingly, the receptacle stopper 10 c of the present embodiment may include the cap portion 11, the screw thread 131 and the protrusion 132 located on the inner side surface of the cap portion 11, and the sealing portion 15 c adhered to the inner upper surface of the cap portion 11.

As described above, the sealing portion 15 c of this embodiment may be limited in ascending position by the protrusion 132 located on the side surface of the cap portion 11 and may have a support layer 151 c and an airtight sheet 152 c adhered to a lower part of the support layer 151 c through adhesion or fusion.

The sealing portion 15 c of this embodiment may additionally include the blocking portion 153 shown in FIG. 9. Here, the blocking portion 153 may also be integrally formed of the same material as that of the support layer 151 c.

The support layer 151 c of this embodiment may be located adjacent to an inner upper surface of the cap portion 11 so as to be in contact with or near the inner upper surface of the cap portion 11 and may be in contact with or coupled to an upper end of the mounting portion 35 located therebelow. To this end, as shown in FIG. 10, one end of the support layer 151 c may be located between an outer end EP151 of the holding portion 31 and an inner end of the mounting portion body 351 of the mounting portion 35 adjacent to the end EP151 (i.e., inner end EP152 of the mounting portion 35) and the other end thereof may be located at an outer end EP153 of the engaging projection 352 of the mounting portion 35 (i.e., outer end of the mounting portion) or a point passing by the outer end EP153.

Accordingly, one end of the support layer 151 c may be located between the holding part 31 and the mounting body 351 of the mounting portion 35 and the other end of the support layer 151 c may be located between the engaging projection 352 and the inside of the side surface of the cap portion 11.

As a result, the support layer 151 c may be a thin plate shape having a donut-like planar shape with a circular empty space in the middle part, and may be positioned to overlap the corresponding portions T131 and T132 of the protrusion 132.

Due to the shape of the support layer 151 c, the support layer 151 c may be positioned so as to completely surround the edge part of the circular sealing portion 15 c so as to be in close contact with or adhered to the upper end of the mounting portion 35, and the support layer 151 may not be located in the middle part.

The airtight sheet 152 c may be positioned to be connected to the support layer 151 c in the middle part where the support layer 151 c is not located in the sealing portion 15 c.

Therefore, as shown in FIG. 10, the airtight sheet 152 c may have a circular planar shape and may be located to completely block and seal the open middle part of the support layer 151 c at a lower end of the support layer 151 c surrounded by the blocking portion 153.

An upper surface of the airtight sheet 152 c may be adhered to a corresponding portion of the support layer 151 c in contact therewith, and a part of a lower surface of the airtight sheet 152 c may be adhered or fused to the upper end of the holding part 31 in contact therewith.

Therefore, a diameter of the airtight sheet 152 c may be equal to a diameter of the part of the support layer 151 c surrounded by the blocking portion 153 and may be larger than an outer diameter of the holding part 31.

The blocking part 153 of this embodiment has the same structure as that of the blocking part described above with reference to FIG. 9, and due to the presence of this blocking part 153, the main contents held in the receptacle body 20 may be prevented from flowing out.

The assembly sequence of the receptacles 1 b told having the receptacle stoppers 10 a to 10 c, respectively, shown in FIGS. 8 to 10 may be the same as the assembly sequence of the receptacle 1 a described above, and thus a detailed description thereof will be omitted.

However, in the receptacle 1 d according to the present embodiment, since the support layer 151 c is not positioned on the airtight sheet 152 c adhered or fused with the holding part 31 and the airtight sheet 152 c is exposed, when the sealing portion 15 c is fused to the upper part of the auxiliary contents holding portion 30, a more efficient fusing operation may be performed compared to the case of the receptacle 1 b.

That is, since the support layer 151 c does not exist on the upper part of the airtight sheet 152 c fused with the holding part 31 of the auxiliary contents holding portion 30, the corresponding part of the airtight sheet 152 b in contact with the upper end of the holding part 31 may be directly irradiated with heat or ultrasonic waves, and thus, the fusing operation between the airtight sheet 152 c and the upper end of the holding part 31 may be performed more stably and efficiently.

Next, a receptacle 1 e including another receptacle stopper 10 e of this embodiment will be described with reference to FIG. 11.

Compared with the receptacle stopper 10 c of FIG. 10, a sealing portion 15 d includes only support layers 1511 and 1512 and the blocking portion 153 without an airtight sheet, except for such a difference from the receptacle stopper 10 c, the receptacle 1 e of this embodiment may have the same structure as that of the receptacle 1 d shown in FIG. 10.

As shown in FIG. 11, the support layers 1511 and 1512 of this embodiment may include a middle part (e.g., first part) 1511 having a first thickness and adhered to the upper end of the holding part 31 to cover an upper part of the holding part 31 and an edge part 1512 having a second thickness greater than the first thickness, surrounding the middle part 1511, and having a lower surface in contact with the upper end of the mounting portion 35.

An upper surface of the edge part 1512 of the support layer 15 d is in contact with an edge part of the upper surface of the cap portion 11 and a lower surface thereof may be adhered or fused to the upper end of the mounting portion 35.

In addition, the middle part 1511 may be seamlessly connected to the edge part 1512 and may be surrounded by the edge part 1512.

The middle part 1511 may be adhered to the upper end of the holding part 31 to cover and seal the open upper part of the holding part 31.

In this embodiment, this edge part 1512 and the middle part 1511 are formed of the same material.

As such, the support layer 15 d of this embodiment has different thicknesses according to positions, so that the middle part 1511 may replace the airtight sheet 152 c to correspond to the airtight sheet 152 c of FIG. 10, and the edge part 1512 may replace the support layer 151 c to correspond to the support layer 151 c of FIG. 10.

As in the case of FIG. 10, the blocking portion 153 is located under the edge part 1512 of this embodiment to block the space between the adjacent gratings 331, thereby preventing outflow of the main contents of the receptacle body 20 to the outside.

The edge part 1512 may be positioned in contact with the upper end of the engaging projection 352 of the auxiliary content holding portion 30 like the support layer 151 c of FIG. 10 and coupled with the upper end of the engaging projection 352.

Meanwhile, the middle part 1511 may be adhered or fused to the upper end of the holding part 31, like the airtight sheet 152 c, thereby blocking the upper part of the open holding part 31 to isolate the auxiliary contents held in the holding part 31 from the outside.

The assembly process of the receptacle 1 e having the receptacle stopper 10 d may also be the same as those described above.

Therefore, the assembler may position the sealing portion 15 d having only the support layers 1511 and 1512 on the auxiliary contents holding portion 30 holding the auxiliary contents 40 and subsequently seal the upper part of the auxiliary contents holding part 30 by the middle part 1511 of the sealing portion 15 d through a bonding operation or a fusing operation to assemble the auxiliary contents holding device. Here, if necessary, the first part 1511 in contact with the upper end of the mounting portion 35 may also be adhered or fused to the upper end of the mounting portion 35 corresponding thereto.

Next, the assembler couples the auxiliary contents holding portion 30 to the coupling portion 23 of the receptacle body 20 holding the main contents, and then couples the cap portion 11 to the coupling portion 23 of the receptacle body 20 through a rotational operation of the cap portion 11. Accordingly, the assembly of the receptacle 1 e including the auxiliary contents holding device in the cap portion 11 may be completed.

In this case, the effect of reducing a manufacturing time and manufacturing cost of the sealing portion 15 d may be obtained.

A sealing releasing operation of the sealing portion 15 d according to an opening operation of the receptacle stopper 10 d may be performed by lifting the protrusion 132 in the same manner as described above.

In addition, since the sealing portion 15 d is formed of a single layer having only the support layer, the entire sealing portion 15 d may be safely separated from the receptacle body 20.

In other words, if the sealing portion includes a plurality of layers containing different materials (e.g., a support layer and an airtight sheet), the support layer and the airtight sheet may be separated from each other during the opening operation of the receptacle stopper, but this problem does not arise in this embodiment.

Next, a receptacle if according to another embodiment of the present disclosure will be described with reference to FIG. 12.

Compared with FIG. 10, components having the same structure are denoted by the same reference numerals as those in FIG. 10 and detailed descriptions thereof will be omitted.

Compared with FIG. 10, the receptacle if of this embodiment may be the same as the receptacle 1 d shown in FIG. 10, except for a sealing portion 15 f and a cap portion 11 f.

Therefore, a stopper 10 f of the receptacle if of this embodiment may include the cap portion 11 f, the screw thread 131 and the protrusion 132 located on the inner side surface of the cap portion 11 f, and the sealing portion 15 f adhered to the inner upper surface of the cap portion 11 f.

The sealing portion 15 f may include a support layer 151 c, the airtight sheet 152 f partially adhered to a lower part of the support layer 151 c through adhesion or fusion, and the blocking portion 153, similar to FIG. 10. However, unlike FIG. 10, the airtight sheet 152 f may be formed of a transparent material through which the auxiliary contents 40 located in the holding part 31 is visible.

In addition, the cap portion 11 f may include a first part 111 which is a transparent part located to face the holding part 31 on the opposite side of the holding part 31 and a second part 112 which is a support part seamlessly connected to the first part 111, surrounding the first part 111, and coupled to the coupling portion 23 of the receptacle body 20 using the screw thread 131.

In this case, the first part 111 may be formed of a transparent material, and the second part 112 may be formed of the same transparent material as that of the first part 111 or may be formed of a translucent or opaque material.

If both the first part 111 and the second part 112 are formed of a transparent material, the first part 111 and the second part 112 may be integrally formed to be seamlessly connected to each other as shown in FIG. 10.

However, if the first part 111 and the second part 112 are formed of different materials (e.g., a transparent material and an opaque material, the first part 111 and the second part 112 may be manufactured as two separate parts and assembled with each other as shown in FIG. 12.

Compared with the cap portion 11 of FIG. 10, the cap portion 11 f may be the same as the cap portion 11 of FIG. 10, except that the cap portion 11 f is divided into two parts 111 and 112.

As such, the first part 111 of the cap portion 11 f facing the holding part 31 in which the auxiliary contents 40 is located at the lower part is formed of a transparent material, and the airtight sheet 152 f located under the first part 111 may also be formed of a transparent material.

Accordingly, the auxiliary contents 40 located in the holding part 31 may be visible to the outside through the transparent airtight sheet 152 f and the first part 111, thereby additionally obtaining an effect that the user may see the auxiliary contents located in the holding part 31.

Accordingly, the user may easily check whether the auxiliary contents 40 is contaminated or spoiled by checking the state of the auxiliary contents 40, and thus, user reliability may be improved due to the visual effect of the auxiliary contents 40.

The cap portion 11 f of this embodiment may also be applied to the cases of FIGS. 5, 8, 9, and 11.

In this case, in the case of FIGS. 5 and 8, at least a part of the support layer 151 facing the holding part 31 on the opposite side and at least a part of the airtight sheet 152 or 152 a, that is, at least a part including a part facing the holding part 31 on the opposite side of the holding part 31, may all be formed of a transparent material.

In the case of FIG. 9, the airtight sheet 152 and at least a part of the support layer 151 facing the holding part 31 on the opposite side of the holding part 31, that is, at least a part including a part facing the holding part 31 on the opposite side, may all be formed of a transparent material.

In the case of FIG. 11, the middle part 1511 of the sealing portion 15 d may be formed of a transparent material.

In this case, an effect that the user may additionally check the auxiliary contents 40 located in the holding part 31 from the outside, without removing the airtight sheet, may be additionally obtained.

The technical features disclosed in each embodiment of the present disclosure are not limited only to the corresponding embodiment, and the technical features disclosed in each embodiment may be merged and applied to different embodiments, unless compatible with each other.

The present disclosure has been described. The present disclosure is not limited to the embodiments described and the accompanying drawings, and various modifications and variations may be made from the viewpoint of a person skilled in the art to which the present invention pertains. Therefore, the scope of the present invention should be defined by the equivalents of claims of the present disclosure as well as the claims. 

What is claimed is:
 1. A receptacle comprising: a receptacle body including a space in which first contents is held and a coupling portion having an inlet; a receptacle stopper coupled to the coupling portion of the receptacle body; and a second contents holding portion including a holding part having an open upper part and holding second contents, a support portion located to surround the holding part to support the holding part, and a mounting portion connected to the support portion and coupled to an upper end of the coupling portion, wherein the receptacle stopper comprises: a cap portion; a protrusion located on an inner side surface of the cap portion and including a first protrusion part and a second protrusion part located to be spaced apart from an upper end of the cap portion by different distances; and a sealing portion located between an inner upper surface of the cap portion and the protrusion and sealing the holding part.
 2. The receptacle of claim 1, wherein the sealing portion comprises: a support layer located adjacent to the inner upper surface of the cap portion and; an airtight sheet adhered to a lower surface of the support layer.
 3. The receptacle of claim 2, wherein the airtight sheet is formed of a material having a melting point lower than a melting point of the support layer.
 4. The receptacle of claim 2, wherein adhesion between the support layer and the airtight sheet is greater than adhesion between the airtight sheet and an upper end of the holding part.
 5. The receptacle of claim 2, wherein the airtight sheet is additionally directly adhered to an upper end of the mounting portion.
 6. The receptacle of claim 5, wherein adhesion between the support layer and the airtight sheet is greater than adhesion between the airtight sheet and the upper end of the holding part and the adhesion between the airtight sheet and the upper end of the mounting portion.
 7. The receptacle of claim 2, wherein the cap portion comprises a first part facing the holding part and formed of a transparent material and a second part surrounding the first part, and the airtight sheet is formed of a transparent material.
 8. The receptacle of claim 1, wherein the sealing portion further comprises a blocking portion extending downward from a lower part of the support layer and disposed to be in contact with an inner side surface of the mounting portion.
 9. The receptacle of claim 1, wherein the sealing portion comprises: a support layer located adjacent to the inner upper surface of the cap portion and having an empty space in a middle part; and an airtight sheet adhered to the support layer to cover the empty space of the support layer and adhered to an upper end of the holding part to cover the open upper part of the holding part.
 10. The receptacle of claim 9, wherein the sealing portion further comprises a blocking portion extending downward from a lower part of the support layer and disposed to be in contact with an inner side surface of the mounting portion.
 11. The receptacle of claim 1, wherein the sealing portion comprises: a first part having a first thickness and adhered to an upper end of the holding part to cover an upper part of the holding part; and a second part having a second thickness greater than the first thickness, surrounding the first part, and having a lower surface in contact with an upper end of the mounting portion.
 12. The receptacle of claim 11, wherein the sealing portion further comprises a blocking portion extending downward from a lower part of the support layer and disposed to be in contact with an inner side surface of the mounting portion.
 13. An auxiliary contents holding device comprising: an auxiliary contents holding portion including a holding part having an open upper part and holding auxiliary contents, a support portion located to surround the holding part to support the holding part, and a mounting portion connected to the support portion and coupled to an upper end of a receptacle; a support layer located above the mounting portion; and an airtight sheet adhered to a lower surface of the support layer and sealing an upper part of the holding part.
 14. The auxiliary contents holding device of claim 13, wherein the airtight sheet is formed of a transparent material.
 15. The auxiliary contents holding device of claim 13, wherein the airtight sheet is formed of a material having a melting point lower than a melting point of the support layer.
 16. The auxiliary contents holding device of claim 13, wherein a diameter of the airtight sheet is smaller than a diameter of the support layer, and the airtight sheet is adhered to an upper end of the holding part.
 17. The auxiliary contents holding device of claim 13, wherein the support layer has a lower surface in contact with an upper end of the mounting portion and an empty space at a middle part, and the airtight sheet covers the empty space of the support layer at the lower part of the support layer and is adhered to an upper end of the holding part to cover the open upper part of the holding part.
 18. The auxiliary contents holding device of claim 13, further comprising: a blocking portion extending downward from a lower part of the support layer and disposed to be in contact with an inner side surface of the mounting portion.
 19. An auxiliary contents holding device comprising: an auxiliary contents holding portion including a holding part having an open upper part and holding auxiliary contents, a support portion located to surround the holding part to support the holding part, and a mounting portion connected to the support portion and coupled to an upper end of a receptacle; and a sealing portion coupled to an upper part of the auxiliary contents holding portion, wherein the sealing portion comprises: a first part having a first thickness and adhered to an upper end of the holding part to cover an upper part of the holding part; and a second part having a second thickness greater than the first thickness, surrounding the first part, and having a lower surface in contact with an upper end of the mounting portion.
 20. The auxiliary contents holding device of claim 19, further comprising: a blocking portion extending downward from a lower part of the support layer and disposed to be in contact with an inner side surface of the mounting portion. 